NAD T 175 Service Manual page 47

TRIGGER
D2 3 0 8
N .I. F O R C E
D2 3 0 8
C M 1 2 1 3 -0 8 M S
+5 V _ K
1 1 0
2
9
5 8
3
M 2 3 0 7
7
N .I. F O R C E
4 6
+5 V _ O U T
DG N D
M 2 3 0 7
X M C O N N E C TO R
1
2
3
4 DG N D
DG N D
+5 V _ O U T
PIN 7 IS G O IN G TO DA B M O DU LE PIN 1 5 (S 1 _ DIN ).
M 2 3 0 6
N .I. PIN 4 IS F R O M DA B M O DU LE PIN 1 6 (S 1 _ DO U T).
8
7 DA B _ TX D
4 DA B _ R X D
3 DA B _ IN
1 +5 V _ O U T
2 +5 V _ O U T
5
6 DG N D
9
DG N D
M 2 3 0 6
DA B C O N N E C TO R F O R C E
1 U 2 3 0 1
C 1 + V C C
M 2 3 0 5
S T2 3 2 B DR
R 2 3 2 0
2 V + G N D
4 7 C 2 3 1 8
1
1 u
5 0 V
2 3
C 1 - T1 _ O U T
3
4 4
R 2 3 5 4 C 2 + R 1 _ IN
C 2 3 1 9
5
1 u
5 0 V
6 2 2 5 C 2 - R I_ O U T
7
8 6
C 2 3 2 1 C 2 3 2 2 C 2 3 2 3 V - T1 _ IN
N .I. N .I. N .I. R 2 3 2 1
9
5 0 V 5 0 V 5 0 V 4 7
C 2 3 2 0
7
1 u T2 _ O U T T2 _ IN
5 0 V
8 R 2 _ IN R 2 _ O U T
C H G N D C H G N D C H G N D
DG N D DG N D
+5 V _ K
Q 2 3 2 0
DTA 1 1 4 E K A
R 2 3 0 3
+5 V _ K
2 .2 k
C 2 3 0 1
0 .0 1 u
R 2 3 0 4
1 0 k
Q 2 3 2 1
DG N D
M 2 3 0 1 -A DTC 1 1 4 E K A C C
IR IN
Q 2 3 0 1
2 _ 5 B B
DTC 1 1 4 E K A
R 2 3 0 2
N .I.
E E
2 _ 1
DG N D
DG N D
DG N D
C H G N D_ JA C K
+5 V _ K
R 2 3 1 0
1 0 0 k
Q 2 3 0 8 M 2 3 0 2 -B
M 2 3 0 1 -B
+1 2 V _ D DTC 1 1 4 E K A C
TR IG G E R O U T 1
TR IG G E R IN
R 2 3 0 9
1 _ 5 B
S W 3 3 k
C 2 3 0 5
R 2 3 0 8
0 .1 u
E
1 0 k 5 0 V
1 _ 1
DG N D DG N D
C H G N D_ JA C K
TR IG _ IN
X 2 3 5 1 R 2 3 5 9
N .I. 1 0 0
R 2 3 5 8
1 0 0
DG N D
C H G N D C H G N D_ JA C K
N .I. F O R T1 7 5
+5 V _ K
+5 V _ K
+5 V _ K TR IG G E R M O DE S W ITC H S O F T C LIPPIN G S W ITC H
C 2 3 2 4
1 u
R 2 3 2 4
5 0 V R 2 3 2 3
R 2 3 2 2
1 6 1 0 k
1 0 k
C 2 3 2 5
O N 1 .8 k
1 0 u 1
O F F
6 3
1 5 1 6 V O F F
4 5
A U TO
2
S 2 3 0 1 -A
1 4 S 2 3 0 2 -B
O N
O F F 2
5 O F F 4
1 3 A U TO 3 6
1
S 2 3 0 1 -B
S 2 3 0 2 -A
1 2
1 1
DG N D DG N D
1 0
9
DG N D
+1 2 V _ D
M 2 3 0 2 -A M 2 3 0 3 -A
Q 2 3 0 2
IR O U T 1 IR O U T 2
DTA 1 1 4 E K A
R 2 3 0 5
2 _ 5 2 _ 5
5 6 0
C 2 3 0 2
4 7 p
5 0 V
2 _ 1 2 _ 1
C
DG N D
B
IR _ IN IR _ O _ 1
E
Q 2 3 0 3
DTC 1 1 4 E K A
C H G N D_ JA C K C H G N D_ JA C K
DG N D
M 2 3 0 3 -B
Q 2 3 0 9
+1 2 V _ D
TR IG G E R O U T 2
2 S B 1 2 7 5
R 2 3 1 1
L2 3 0 3 R 2 3 1 2 R 2 3 1 4
1 _ 5 1 _ 5
1 5 u H
S W 3 .3 1 W 3 .3 1 W S W 3 .3 1 W
C 2 3 0 6 R 2 3 4 4
0 .1 u 1 0 k
D2 3 0 1 D2 3 0 2
5 0 V
1 _ 1 1 _ 1
LL4 1 4 8 LL4 1 4 8
R 2 3 1 3
1 0 k
DG N D
DG N D
C
C H G N D_ JA C K C H G N D_ JA C K
B
TR IG _ O U T_ 1
Q 2 3 1 0
DTC 1 1 4 E K A
E
DG N D
+5 .3 V +5 V _ V
U 2 3 0 2
R 2 3 5 6 R 2 3 5 7
TPS 2 0 1 1 A
0 N .I.
1 8
G N D O U T8
2 7
IN 2 O U T7
3 6
IN 3 O U T6
4 5
E N O U T5
C 2 3 2 9
1 0 u
1 6 V
C 2 3 2 6 C 2 3 2 7
0 .1 u 0 .1 u
5 0 V 5 0 V
DG N D DG N D DG N D DG N D
+1 2 V _ D +1 2 V _ D
Q 2 3 0 4
M 2 3 0 4 -A Q 2 3 0 6
DTA 1 1 4 E K A
DTA 1 1 4 E K A
IR O U T 3
R 2 3 0 6 R 2 3 0 7
2 _ 5
5 6 0 5 6 0
C 2 3 0 3 C 2 3 0 4
4 7 p
4 7 p
5 0 V 5 0 V
2 _ 1
C C
DG N D DG N D
B B
IR _ O _ 2
E E
Q 2 3 0 5 Q 2 3 0 7
DTC 1 1 4 E K A DTC 1 1 4 E K A
C H G N D_ JA C K
DG N D DG N D
M 2 3 0 4 -B Q 2 3 1 3
Q 2 3 1 1 +1 2 V _ D
2 S B 1 2 7 5 2 S B 1 2 7 5
TR IG G E R O U T 3
L2 3 0 2 R 2 3 1 5 R 2 3 1 7 L2 3 0 1
1 _ 5
1 5 u H 1 5 u H
C 2 3 0 7 R 2 3 4 5 3 .3 1 W S W 3 .3 1 W C 2 3 0 8 R 2 3 4 6
0 .1 u 1 0 k 0 .1 u 1 0 k
5 0 V D2 3 0 3 D2 3 0 4 5 0 V D2 3 0 5
1 _ 1
LL4 1 4 8 LL4 1 4 8 LL4 1 4 8
DG N D DG N D R 2 3 1 9
R 2 3 1 6
1 0 k 1 0 k
DG N D DG N D
C C
C H G N D_ JA C K
B
TR IG _ O U T_ 2
Q 2 3 1 2
DTC 1 1 4 E K A
E E
DG N D DG N D
47
+3 .3 V
+3 .3 V
R 2 3 4 7
N .I.
DA B _ TX D
R 2 3 2 9
C
N .I.
R 2 3 3 1 R 2 3 3 2
Q 2 3 1 6
B 0 0
N .I.
C
E Q 2 3 1 7
B
N .I.
DG N D
E
DG N D
+5 V _ K
Q 2 3 1 6 , Q 2 3 1 7 , Q 2 3 1 8 , Q 2 3 1 9
DTC 1 1 4 E K A F O R C E
R 2 3 4 8
+5 V _ K
N .I.
R 2 3 2 9 , R 2 3 4 8
4 .7 k F O R C E
C
R 2 3 3 0
R 2 3 3 0
N .I. Q 2 3 1 9
B
N .I. 1 k F O R C E
C
R 2 3 3 1 , R 2 3 3 2 , R 2 3 4 7
Q 2 3 1 8 E N .I. F O R C E
B
N .I.
DA B _ R X D
DG N D
E
DG N D
+5 V _ K
+5 V _ K
C 2 3 1 4
C 2 3 1 5
1 0 u 0 .1 u
U 2 3 0 3
1 6 V
5 0 V
S N 7 4 H C 8 6 DT
R 2 3 3 9
1 1 4
1 A V C C DG N D 0
2 1 B 4 B 1 3
3 1 2 R 2 3 4 0
1 Y 4 A
N .I.
R 2 3 4 1
4 1 1
2 A 4 Y
DG N D
1 5 k
5 2 B 3 B 1 0
6 9
2 Y 3 A
IR _ R
7 8
G N D 3 Y
R 2 3 5 1
1 0 k
DG N D
C 2 3 1 7 C 2 3 1 6
1 0 0 p 1 0 u
5 0 V 1 6 V
DG N D
DG N D DG N D
+1 2 V _ D
R 2 3 1 8
3 .3 1 W
D2 3 0 6
TR IG _ O U T_ 3
LL4 1 4 8
B
Q 2 3 1 4
DTC 1 1 4 E K A
+5 V _ V +5 .3 V +1 2 V _ D+5 V _ K
J2 3 0 1 A
To C on n #2 J2 3 0 1 B
To M C U J2 3 0 1 B (T1 7 5 )
DA B _ TX D_ 5 V 1
DA B _ R X D_ 5 V 2
DA B _ IN 3
S C _ 1 4
S C _ 2 5
S _ C LIP_ IN D 6
A U TO /O F F
7
2 3 2 _ TX D 8
2 3 2 _ R X D 9
IR _ O _ 1 1 0
IR _ O _ 2 1 1
X M /DA B _ PW R 1 2
IR _ R _ M IX 1 3
TR IG _ IN 1 4
TR IG _ O U T_ 1 1 5
TR IG _ O U T_ 2 1 6
TR IG _ O U T_ 3 1 7
DG N D 1 8
+5 V _ K 1 9
+1 2 V _ D 2 0
IR _ R 2 1
+5 .3 V 2 2
+5 V _ V 2 3
2 4
2 5
2 6
C 2 3 3 0 C 2 3 2 8
N .I. 1 0 u
1 6 V 1 6 V
DG N D DG N D DG N D
C 2 3 3 0
1 0 u /1 6 V F O R C E
D2 3 0 7
+5 V _ K N .I. +3 .3 V
U 2 3 0 4
N .I.
IN O U T
C 2 3 1 1 C 2 3 1 0 C 2 3 0 9
N .I. N .I. N .I.
1 6 V 5 0 V 1 6 V
DG N D
U 2 3 0 4 C 2 3 1 1
LM 1 1 1 7 S 3 .3 V F O R C E 4 7 u /1 6 V F O R C E
D2 3 0 7
LL4 1 4 8 F O R C E
C 2 3 0 9
1 0 u /1 6 V F O R C E
C 2 3 1 0
0 .1 u /5 0 V F O R C E